<template>
  <div class="app-container">
    <!-- 查询和其他操作 -->
    <div
      class="filter-container"
      style="float: right">
      <el-input
        v-model="listQuery.foodId"
        clearable
        class="filter-item"
        style="width: 200px;"
        placeholder="请输入食品编号"/>
      <el-input
        v-model="listQuery.foodName"
        clearable
        class="filter-item"
        style="width: 200px;"
        placeholder="请输入食品名称"/>
      <el-button
        class="filter-item"
        type="primary"
        icon="el-icon-search"
        @click="handleFilter">查找
      </el-button>
      <el-button
        class="filter-item"
        type="primary"
        icon="el-icon-edit"
        @click="handleCreate">添加
      </el-button>
    </div>

    <!-- 查询结果 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      element-loading-text="正在查询中。。。"
      border
      fit
      highlight-current-row>
      <el-table-column type="expand">
        <!-- element展开行详情模板 -->
        <template slot-scope="props">
          <el-form
            label-position="left"
            class="table-expand">
            <el-form-item label="食品介绍">
              <span>{{ props.row.foodExplain }}</span>
            </el-form-item>
            <el-form-item label="所属商家编号">
              <span>{{ props.row.businessId }}</span>
            </el-form-item>
          </el-form>
        </template>
      </el-table-column>
      <!-- element表格 -->
      <el-table-column
        align="center"
        label="食品编号"
        prop="foodId"/>

      <el-table-column
        align="center"
        min-width="100"
        label="食品名称"
        prop="foodName"/>

      <el-table-column
        align="center"
        property="iconUrl"
        label="食品图片">
        <template slot-scope="scope">
          <img
            :src="scope.row.foodImg"
            width="40">
        </template>
      </el-table-column>


      <el-table-column
        align="center"
        label="食品详情"
        prop="detail">
        <template slot-scope="scope">
          <el-dialog
            :visible.sync="detailDialogVisible"
            width="60%"
            title="食品详情">
            <div v-html="goodsDetail"/>
          </el-dialog>
          <el-button
            type="primary"
            size="mini"
            @click="showDetail(scope.row.foodExplain)">查看
          </el-button>
        </template>
      </el-table-column>

      <el-table-column
        align="center"
        label="食品价格"
        prop="foodPrice"/>


      <el-table-column
        align="center"
        label="操作"
        width="200"
        class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            type="primary"
            size="mini"
            @click="handleUpdate(scope.row)">编辑
          </el-button>
          <el-button
            type="danger"
            size="mini"
            @click="handleDelete(scope.row)">删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :pageSizes="[2,5,10,20]"
      :page.sync="listQuery.page"
      :limit.sync="listQuery.limit"
      @pagination="getList"/>

    <el-tooltip
      placement="top"
      content="返回顶部">
      <back-to-top :visibility-height="100"/>
    </el-tooltip>
  </div>
</template>

<style>
.table-expand {
  font-size: 0;
}

.table-expand label {
  width: 100px;
  color: #99a9bf;
}

.table-expand .el-form-item {
  margin-right: 0;
  margin-bottom: 0;
}

.gallery {
  width: 80px;
  margin-right: 10px;
}
</style>

<script>
import {listGoods, deleteGoods} from '@/api/goods/goods'
import BackToTop from '@/components/BackToTop'
import Pagination from '@/components/Pagination' // Secondary package based on el-pagination

export default {
  name: 'GoodsList',
  components: {BackToTop, Pagination},
  data() {
    return {
      list: [], // 数据列表
      total: 0, // 数据总数
      listLoading: true,
      // element-admin 分页
      listQuery: {
        page: 1, // 页码
        limit: 20, // 每页条数
        foodId: undefined, // 食品编号
        foodName: undefined, // 食品名称（支持模糊查询）
        sort: 'add_time',
        order: 'desc'
      },
      // 查看详情数据
      goodsDetail: '',
      detailDialogVisible: false // 模态框状态
    }
  },
  created() {
    // 页面信息初始化
    this.getList()
  },
  methods: {
    // 获取列表数据
    getList() {
      this.listLoading = true

      let dt = +new Date();
      this.listQuery.dt = dt;
      listGoods(this.listQuery)
        .then(response => {
          /* const goodsData = [
            {"foodId":1,"foodName":"肯德基","foodPrice":10},
            {"foodId":2,"foodName":"烤鱼","foodPrice":5},
            {"foodId":3,"foodName":"王老吉","foodPrice":1}
          ] */
          this.list = response.data.data; // response.data.data.list
          this.total = response.data.total; //response.data.data.total
          this.listLoading = false
        })
        .catch(() => {
          this.list = []
          this.total = 0
          this.listLoading = false
        })
    },
    // 查询按钮钩子
    handleFilter() {
      this.listQuery.page = 1
      this.getList()
    },
    // 添加食品按钮跳转
    handleCreate() {
      this.$router.push({path: '/goods/addgoods'})
    },
    // 编辑食品跳转
    handleUpdate(row) {
      this.$router.push({path: '/goods/editgoods', query: {id: row.foodId}})
    },
    // 查看食品详情
    showDetail(detail) {
      this.goodsDetail = detail
      this.detailDialogVisible = true
    },
    // 删除食品
    handleDelete(row) {
      this.$confirm('此操作将删除该食品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })
        .then(() => {
          deleteGoods(row.foodId)
            .then(response => {
              this.$notify.success({
                title: '成功',
                message: '删除成功'
              })
              // 只在前端页面删除该食品信息数据。
              const index = this.list.indexOf(row)
              this.list.splice(index, 1)
            })
            .catch(response => {
              this.$notify.error({
                title: '失败',
                message: response.data.errmsg
              })
            })
        })
        .catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          })
        })
    }
  }
}
</script>
